Marineland Deep Dimension Tank

[gtaylor67]

I think when I purchased mine you could order a taller stand from the factory.. Think its 32 tall if I remember its been awhile ago.. But its also 36 wide and will not fit through most doors if 32 tall also.. IMO.. It would be nice if they offered a taller canopy so you could put some serious lighting under it ... You get about 9" from tank top to canopy bottom and there is a 1' and 1/4 brace that runs across for support in two places... Good Luck.. I still love the depth...

 

[mike660r]

I wasn't happy with the height of the monteray stand that came with my tank. Click on my red house to see what I did.

 

[EnderG60]

Pricing really depends on whether you go with a Starfire front as well.

As far as build quality, they are solid. Their only flaws are 2 things:

1.) The overflows really aren't sufficient for a large tank so they require modding.

2.) The braces are monster thick so they cast shadows and actually dip into the water on mine.

However, for the money they are great. Custom tanks I priced were considerably more.

1. I only put about 1500gph through mine which is plenty. I use a closed loop for full flow.

2. yup same with mine.

I love it though. 3x400w halides cover the tank just fine, ill add some T5's for the hell of it though.

 

[serpentman]

Throttle your return pump down or get one that better matches the GPH of the overflows and your braces won't touch the water anymore. If the crossbraces are touching the water then you are pumping way way more water into the display than the overflows can suck back out. And nothing will fix it other than throttling your pump back or getting a pump that better matches the returns.

Also if you dryfit the pipes in your overflow make sure the pieces are fully seated in the various couplings, etc. When I first got going on mine I was wondering why my overflow water level was the same as the main waterline, lo and behold, overflow pipe wasn't fully seated in a coupling. Fixing that made the water in my overflow drop down to the proper level of about 1 inch below the main waterline.

Do you have one of these tanks? I haven't seen one yet that hasn't had an issue with braces touching the water. IMO, in order to sufficiently slow the flow to clear the braces, it would be reduced to a trickle in the overflows. The bottom of the brace only allows for about 1/4-3/8" to the bottom of the slots of the overflow.

I am not pushing that much flow through mine. I figure I am somewhere between 1500gph-2000gph, which on a 300g, isn't that much. No matter what the limitations of the tank, I wouldn't consider any less turnover. The stock overflows will handle what I was throwing at them. However, I used "Herbie" drains to make sure there were no issues and reduce water level.

Not knocking these tanks but I still stand by my original argument. Although the overflows work, they are not ideal for a tank with this surface area (18sq ft). In hindsight, I might have considered one tha was not drilled and put in a coast-to-coast drain system.

 

[Nickjr000]

Wow $3800 dollars is way off. Come to edmonton and I'll sell you a brand new 375 8 footer with 2" steel stand for $1000 less

Wow you want to deliver that to nj ill buy it

 

[SteveMH]

Not knocking these tanks but I still stand by my original argument. Although the overflows work, they are not ideal for a tank with this surface area (18sq ft). In hindsight, I might have considered one tha was not drilled and put in a coast-to-coast drain system.

No argument there...

 

[J.P.Reef]

Can anyone tell me what size holes are on the 300 DD or the size of the bulkheads. I'm ordering this tank but customizing it somewhat. I'm not a big fan of the corner overflows and i'm having them moved.

 

[EnderG60]

they are for 1" bulkheads, unless you order different.

they will do external overflows as well, not sure how much it costs but they do it. Really wish I had know that when I ordered mine.

 

[prop-frags]

No argument there...

Steve,
That's a nice-looking mod you did there.
What kind of drains are you using in yours?
By my calculations, the overflows could potentially have 14" of linear overflow each if you widened them all the way across. Then you could be up in the 1800+ GPH range (if I trust the reef central calculator)

 

[SteveMH]

Thanks! I am using all four holes as drains, each with a durso. The four 1" drains tie into a 2" pipe to the basement. I never thought about widening them, that's a good idea. My modifications have worked well but I am seriously thinking of removing the overflows all together and drilling the back. Just not sure I'm ready to take on the project!

 

[austin93]

I think I know of one for sale that is already done. I hear its expensive thou. Ha! Ha!

 

[Reef Happy]

Does anyone know if Marineland will do other overflows in the 300 DD other than the dual cornerflo's? Such as a acrylic single OF box with 2 drains with 1 1/2" bulk head instead of the 1".

 

[Zuska]

i love how deep this tank is how many watts total is on this tank? and what do you use for flow?

 

[quincy2008]

My front door is only 35" wide. In order to get a taller stand what does everyone think of building the stand in two sections?

 

[stunreefer]

Does anyone know if Marineland will do other overflows in the 300 DD other than the dual cornerflo's? Such as a acrylic single OF box with 2 drains with 1 1/2" bulk head instead of the 1".

I know they will customize these tanks to what you'd like... contact a dealer for more info.

 

[quincy2008]

Bought the 300 yesterday for $1700. Starting to plan the stand and lighting. My front door is only 35" so does anyone have an idea on how to build a stand in two sections? Ideally a 40" stand would be great. Probably 3 400 watt pendants.

 

[cayenne]

Do you have one of these tanks? I haven't seen one yet that hasn't had an issue with braces touching the water. IMO, in order to sufficiently slow the flow to clear the braces, it would be reduced to a trickle in the overflows. The bottom of the brace only allows for about 1/4-3/8" to the bottom of the slots of the overflow.

I am not pushing that much flow through mine. I figure I am somewhere between 1500gph-2000gph, which on a 300g, isn't that much. No matter what the limitations of the tank, I wouldn't consider any less turnover. The stock overflows will handle what I was throwing at them. However, I used "Herbie" drains to make sure there were no issues and reduce water level.

Not knocking these tanks but I still stand by my original argument. Although the overflows work, they are not ideal for a tank with this surface area (18sq ft). In hindsight, I might have considered one tha was not drilled and put in a coast-to-coast drain system.

This is the exact same situation that has challenged me. Serpentman, has summed it up perfectly. For such a nice tank, the overflows are completely inadequate, and with any flow at all, your lapping the bottom of the braces.

 

[Nova101]

How do you contact them to discuss customizations with them?

 

[quincy2008]

I called them and they said external overflows are not an option. Using all four holes as inlets should help. If you could get 1500 to 1700 flow that should be adequate. They may drill different holes and you would have to build your own overflows.

 

[SHOmuchFUN]

Why not just use all 4 holes as drains and run your returns over the lip of the tank?